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Welcome to ArcGIS Desktop Help
Copyright information
GIS Dictionary
What's new in ArcGIS
What's new in ArcGIS 9.2
Migration guides
Getting started
Fundamentals of GIS data
Introducing ArcGIS Desktop
Tutorials
Toolbars
Core ArcMap toolbars
ArcCatalog toolbars
Extension toolbars
ArcScene toolbars
ArcGlobe toolbars
ArcReader toolbars
Getting more help
Using this help system
Getting help within the applications
ArcGIS Desktop Documentation Library
Accessing ESRI Software Training
Using the GIS Dictionary
Contacting Technical Support
Support for users located outside the United States
Contacting ESRI
Map projections and coordinate systems
Getting started with map projections
An overview of map projections
Projection basics the GIS professional needs to know
About the geoid, ellipsoid, spheroid and datum, and how they are related
Identifying an unknown coordinate system
Converting Degrees Minutes Seconds values to Decimal Degree values
Geographic coordinate systems
Projected coordinate systems
About projected coordinate systems
About map projections
Projection types
Planar projections
Conic projections
Cylindrical projections
Other projections
Projection parameters
Geographic transformations
Supported map projections
List of supported map projections
Aitoff
Alaska Grid
Alaska Series E
Albers Equal Area Conic
Azimuthal Equidistant
Behrmann Equal Area Cylindrical
Bipolar Oblique Conformal Conic
Bonne
Cassini-Soldner
Chamberlin Trimetric
Craster Parabolic
Cube
Cylindrical Equal Area
Double Stereographic
Eckert I
Eckert II
Eckert III
Eckert IV
Eckert V
Eckert VI
Equidistant Conic
Equidistant Cylindrical
Equirectangular
Fuller
Gall's Stereographic
Gauss-Kruger
Geocentric Coordinate System
Geographic Coordinate System
Gnomonic
Great Britain National Grid
Hammer-Aitoff
Hotine Oblique Mercator
Krovak
Lambert Azimuthal Equal Area
Lambert Conformal Conic
Local Cartesian Projection
Loximuthal
McBryde-Thomas Flat-Polar Quartic
Mercator
Miller Cylindrical
Mollweide
New Zealand National Grid
Orthographic
Perspective
Plate Carree
Polar Stereographic
Polyconic
Quartic Authalic
Rectified Skewed Orthomorphic
Robinson
Simple Conic
Sinusoidal
Space Oblique Mercator
State Plane Coordinate System
Stereographic
Times projection
Transverse Mercator
Two-Point Equidistant
Universal Polar Stereographic
Universal Transverse Mercator
Van der Grinten I
Vertical Near-Side Perspective
Winkel I
Winkel II
Winkel Tripel
Vertical coordinate systems
Mapping and visualization
Editing and data compilation
An overview of editing and data compilation
Getting started with editing
About editing your geodatabase in ArcMap
Adding the data you want to edit
The structure of vector datasets
Adding the editing toolbars
Starting and stopping an edit session
The sketch construction tools
Using the snapping environment
About setting distance units
Setting direction measuring systems and units
Shortcut keys for editing in ArcMap
Common editing tasks
Common point editing tasks
Common line editing tasks
Common polygon editing tasks
Common annotation editing tasks
Common multipoint editing tasks
Editing data in a different projection
Creating new features
Editing existing features
Moving features
Rotating features
Copying and pasting features
Deleting features
Adding and deleting vertices
Moving vertices
Editing attribute values of a vertex
Reshaping lines and polygons using a sketch
Splitting polygon features
Splitting line features
Trimming lines
Extending lines
Flipping lines
Scaling features
Clipping features
Stretching a feature's geometry proportionately
Simplifying and smoothing features
Editing attributes
Editing annotation
An overview of editing annotation
Creating new annotation features
Creating and editing annotation that follows features
Editing the size and position of annotation features
Editing annotation in the Attributes dialog box
Editing the appearance of annotation features
Editing feature-linked annotation
Editing dimension features
Using a digitizer
Spatial adjustment
Editing topology
About topology
Topology rules
Topology error fixes
Basic topology tasks
Creating a map topology
Editing features in a topology
Editing shared geometry
Topology validation
Topology errors and exceptions
Correcting topology errors
Finding features with shared topology elements
Clearing selected topology elements
Changing the symbology for topology features
Making new features with topology tools
Editing relationships and related objects
COGO
Geoprocessing
Geoprocessing tool reference
An overview of commonly used tools
Geoprocessing commands quick reference guide
Licensing for geoprocessing tools
Data types for geoprocessing tool parameters
3D Analyst toolbox
Analysis toolbox
An overview of the Analysis toolbox
Comparison poster of Overlay and Extract tools
Analysis toolbox sample applications
Extract toolset
Overlay toolset
Proximity toolset
Statistics toolset
Business Analyst toolbox
Cartography toolbox
An overview of the Cartography toolbox
Cartography toolbox sample applications
Graphic Quality toolset
Masking toolset
Representation Management toolset
Symbolization Refinement toolset
Conversion toolbox
An overview of the Conversion toolbox
From Raster toolset
Metadata toolset
To CAD toolset
To Coverage toolset
To dBASE toolset
To Geodatabase toolset
To Raster toolset
To Shapefile toolset
Coverage toolbox
Data Interoperability toolbox
Data Management toolbox
Geocoding toolbox
Geostatistical Analyst toolbox
An overview of the Geostatistical Analyst toolbox
Understanding geostatistical analysis
Working with a geostatistical layer
Creating a grid from a geostatistical layer
Geostatistical Analyst toolbox sample applications
Tools
Linear Referencing toolbox
Multidimensional toolbox
Military Analyst toolbox
An overview of the Military Analyst toolbox
Data Management toolset
Geometry toolset
Utilities toolset
Military Overlay Editor toolbox
An overview of the Military Overlay Editor toolbox
Utilities toolset
Network Analyst toolbox
Server toolbox
An overview of the Server toolbox
Caching toolset
Spatial Analyst toolbox
Spatial Statistics toolbox
An overview of the Spatial Statistics toolbox
Modeling spatial relationships
Spatial Statistics toolbox sample applications
Analyzing Patterns toolset
Mapping Clusters toolset
Measuring Geographic Distributions toolset
Utilities toolset
Samples toolbox
Tracking Analyst toolbox
Environment Settings
Environment settings
General settings
Cartography settings
Coverage settings
Geodatabase settings
Raster Analysis settings
Raster Storage settings
Geodatabases and ArcSDE
Data management with ArcCatalog
Data support in ArcGIS
An overview of data support in ArcGIS
Data formats supported in ArcGIS
CAD data
The composition of a CAD drawing
Working with CAD data in ArcGIS
Displaying CAD features
Georeferencing CAD data
CAD feature attributes and queries
CAD data translations
Geoprocessing tools for CAD translation
Common CAD data workflows
Coverages
What is a coverage
Summary of coverage feature classes
Coverage resolution (precision)
How coverages are stored
Creating a new coverage
Understanding and maintaining attributes in a coverage
About fields (items) in coverage attribute tables
Creating a new INFO table
About the coverage extent
Coverage tics
Defining a coverage's coordinate system
Coverage topology
Coverage tolerances
Coverage relationships and relationship classes
Coverage data limitations
Importing an ArcInfo interchange file (E00)
NetCDF: multidimensional, time series data
An overview of netCDF data
Understanding netCDF data
Working with netCDF data in ArcGIS
Raster data
Shapefiles
About shapefiles, dBASE tables, and file types
Shapefile file extensions
Creating new shapefiles and dBASE tables
Adding and deleting fields in shapefiles
Creating and updating indexes in shapefiles
Defining a shapefile's coordinate system
How to salvage a corrupt shapefile
Tables and attribute information
Terrains
Extensions
Geocoding and address management
Linear referencing
Network analysis
Using the Network Analyst extension
Analyzing geometric networks
Mobile GIS
Interoperability and standards support
Customizing and developing with ArcGIS
Guide to data that comes with ArcGIS
Licensing and desktop administration
ArcGIS Image Server
GIS Servers and services